2007 Aalborg University, Mobile Device Group. Qtopia Phone Edition and Qtopia Greenphone

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1 Qtopia Phone Edition and Qtopia Greenphone

2 Qtopia Qtopia application framework for Linux-based embedded devices Qtopia is based on Qt 4 from Trolltech Different versions for different purposes: Qtopia Core simple, single-purpose devices Qtopia Platform general, multi-application devices Qtopia PDA Edition for PDAs, includes applications Qtopia Phone Edition for mobile phones, includes applications

3 Qtopia Greenphone Development platform for Qtopia Phone Edition Specifications Touch-screen and keypad UI QVGA LCD screen Marvell PXA MHz CPU 64MB RAM + 128MB flash Mini-SD card slot Broadcom BCM2121 GSM/GPRS baseband processor Tri-band GSM (900/1800/1900) Bluetooth Mini-USB 1.3 Mpixel camera

4 Qtopia Greenphone What can you do with Qtopia Phone Edition? Easy GUI design through Qtopia widgets Access phone functionality Access built-in PIM functionality Access networking functionality Quickly get started building applications tapping into existing functionality

5 Qtopia Phone Edition - Services Qtopia Application Services Standardized APIs to access functionality supplied by other applications Invoke a specific service System integrator or user settings determine which application supplies it Applications written to request services and/or serve requests through QCop New services registered through system config files

6 Qtopia Phone Edition - Services Pre-defined services Clock, Date, Time, TimeMonitor, Alarm, Calendar, Tasks Contacts, ContactsPhone, Dialer, , SMS, smsapp VoiceRecording, PhotoEdit, WebAccess Help, InputMethod, Launcher, Profiles, Push, QDL, Qtopia, ScreenSaver, Settings, SettingsManager, TaskManager

7 Qtopia Phone Edition QCop QCop is an inter-application messaging facility Service requests QCopServiceRequest srv(servicename, action) Communication between specific applications via channels QPE/Application/appname

8 Qtopia Phone Edition QDL Qtopia Data Linking QDL Link data items across applications within the Qtopia application framework a sort of hyperlinks Example: A meeting item in the Calendar application may include links to persons in the Contacts application attending the meeting Applications must be designed to provide QDL Applications display links or allow the user to define/edit links using special text field

9 Qtopia Phone Edition - Plugins Plugins provide functionality at another level than applications/services High-level API for plugins that extend the Qtopia framework itself Written by extending base classes such as QImageIOPlugin, QScreenDriverPlugin etc. Low-level API for plugins that extend Qtopia applications Applications must be written to detect and load plugins

10 Qtopia Phone Edition - Modules Several modules support various functionality Telephony VoIP interface (developer has to add VoIP stack) Phone library call and SMS handling etc. SIM Toolkit Bluetooth support BlueZ BT protocol stack ( technology preview ) Over-the-air configuration AT command handling

11 Qtopia Phone Edition Networking Dialup plugin: PPP connections, GPRS LAN plugin: LAN, WLAN (Greenphone no WLAN) Qtopia networking API facilities (QtNetwork) QFtp, QHttp QtUdpSocket, QtTcpSocket, QTcpServer, QtSslSocket QNetworkProxy

12 Qtopia Phone Edition Other application facilities Safe execution environment Public Key Infrastructure to determine trusted applications Sand-box environment to control system access for applications Java Java support as well for wider compatibility

13 Qtopia Greenphone SDK The SDK is a complete Linux system containing all necessary tools running as VMware Fully set-up environment ready for developing applications for the Greenphone Use Greenphone emulator or connect real phone Run under either Windows or Linux

14 Qtopia Greenphone SDK Greenphone SDK pricing Community SDK (GPL 2): Free Light (commercial distribution, 1 device per license): $195 Professional (full source, Trolltech support, additional devices): Custom price Qtopia Greenphone $695

15 Qtopia Greenphone Promising Easy to get started with Qt widgets well documented A lot missing Documentation Stability Community Too expensive Not enough open-source developers will buy one Prohibits Linux-style development

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